Shell frame for eyeglasses



J. H. BROWN.

SHELL FRAME FOR EYEGLASSES.

APPLICATION FILED APR. 9, 1920.

Patented Sept. 12, 1922.,

KAQSQMQO 5 vwewlioz JA ayzB/wzwa ame 1 351 4&4 a

Patented Sept. T2, 1%22.

were

are

JAMES IEEOYT BROWN, OF NEW YORK, N. Y.

snnnr. rennin FOR nrnenassns.

Application filed April 9,

To all whom it may concern Be it known that T, JAMES Hor'r Brown, a citizen of the United States, residing in the cit of New York, county and State of New ork, have invented a new and useful improvement in Shell Frames for Eyeglasses, of which the following is a specification.

This invention. relates to so-called zylonlte w or composition shell frames for eye glasses. The composition shell is usually U-shaped in cross section and fits over and around the eye wire or lens-frame.

A great deal of diificulty has been encountered in securing the composition covering on the eye wire, as the compositlon tends to shrink or get unshapely.

T have devised a novel and inexpensive method of securing the composition to the 2o eye-wire and my invention resides in said method as well as in the product resulting therefrom.

The accompanying drawing illustrates the preferred embodiment of my invention, it

being understood that changes in the same may be made within the scope ofthe claims and as indicated by the variations thereof.

' in said drawin Figure 1, is a v1ew partly in elevation and 3@ partly in section of the improved mounting.

Figure 2 is an enlarged perspective view.

Figure 3 is'a cross section on the line 3?-3 of Figure 1.

Fi re 4: is a section like Figure 3, but

351 showlng a modification.

Like reference numerals indicate corresponding parts in the difi'erent figures of the drawing.

The numeral 1 indicates the eye-wire or to frame which is grooved as indicated at 5 to retain the lens.

The zylonite or composition shell is crescent-shape in cross section to cover the eye-wire.

Various more' or less expensive and cumbersome means of securing the composition to the eye-wire have been suggested.

it accomplish this result by the following method.

Adjacent the usual end studs 4'4: a lug 2 is struck or swedged from the regular eyewire 1 thus forcing a suficient amount of projecting metal above the eye-wire to 1920. Serial N0. 372,402.

permit a hole to be punched or drilled in the said luv 2 as shown in Figure 2. The shell or zyl onite rim or casing 3 as before stated is grooved to a size to fit over and perfectly enclose the eye-wire 1 and when on a completed frame, the shell or zylonite covers the metal entirely.

The metal end pieces 4: and the nose bridge (not shown) are preferably not covered with shell or zylonite.

The zylonite coverin or casing 3 is cut to the exact length required for a perfect fit to the frame and when it is applied to the frame the lug 2 is forced up into the zylonite thus creating therein a vdepression as shown in Figure 1. Tn short, the casing or composition is forced down on to the lug 2 until it fits snug and smooth'on the frame.

While in this position holes are drilled or punched through the composition 3 and proj ecting lug 2. Then a pin or rivit 6 is forced through the composition and held therein by friction. The rivet 6 causes the composition tobe doubly locked by reason of the pin and also the lug being forced into the composition. The pin 6 makes a perfect fit to the hole and may be riveted if desired, but this is not at all necessary, due among other things to the fact that there is a tendency of the ends of the zylonite 3 to spring the least particle away from the eye-wire, and this together with the perfect fit of the pin or rivet is suflicient to hold the pin securely in perfect position. There is also a slight tendency of the composition 3 toward lon tudinal shrinkage and this is resisted by the pint} and lug 2.

Figure 4 is a cut showing the hole through only one side of the zylonite and the pin 6 going into the rear side of the frame. With this construction the pin does not show from the front, yet it holds the composition firmly in place.

What is claimed as new is 1. A method of securing a covering on an eye-wire, which consists in forming a lug on the wire, forcing a covering thereover drilling the covering and lug and placing a pin in the drill hole.

2. An eyeglass frame comprising an eyewire, a lug thereon, a composition covering fitting the wire and lug and a pin "penetrating the lug and covering.

3. An eyeglass frame comprising a ring having its opposite ends on sides of said 7 having lugs thereon, a composition covering end pieces, said eye-wire being provided pressed onto the 111 and pins penetrating with an outwardly extending boss adjacent 1f the composition an the lugs. each end piece, and an attaching member 5 4. In combination, ametallic lens-frame secured in each boss and extending through having an eye-wire with 7 connecting end the rim. pieces, anon-metallic rim on said frame JAMES HOYT BROWN. 

